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SG101457A1 - Cdma spreading method and cdma terminal apparatus - Google Patents

Cdma spreading method and cdma terminal apparatus

Info

Publication number
SG101457A1
SG101457A1 SG200104315A SG200104315A SG101457A1 SG 101457 A1 SG101457 A1 SG 101457A1 SG 200104315 A SG200104315 A SG 200104315A SG 200104315 A SG200104315 A SG 200104315A SG 101457 A1 SG101457 A1 SG 101457A1
Authority
SG
Singapore
Prior art keywords
cdma
terminal apparatus
spreading method
cdma terminal
cdma spreading
Prior art date
Application number
SG200104315A
Inventor
Iida Sachio
Original Assignee
Sony Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sony Corp filed Critical Sony Corp
Publication of SG101457A1 publication Critical patent/SG101457A1/en

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/10—Code generation
    • H04J13/12—Generation of orthogonal codes
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/69—Spread spectrum techniques
    • H04B1/707—Spread spectrum techniques using direct sequence modulation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B7/00—Radio transmission systems, i.e. using radiation field
    • H04B7/24—Radio transmission systems, i.e. using radiation field for communication between two or more posts
    • H04B7/26—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile
    • H04B7/2628—Radio transmission systems, i.e. using radiation field for communication between two or more posts at least one of which is mobile using code-division multiple access [CDMA] or spread spectrum multiple access [SSMA]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04J—MULTIPLEX COMMUNICATION
    • H04J13/00—Code division multiplex systems
    • H04J13/0007—Code type
    • H04J13/004—Orthogonal
    • H04J13/0044—OVSF [orthogonal variable spreading factor]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B2201/00—Indexing scheme relating to details of transmission systems not covered by a single group of H04B3/00 - H04B13/00
    • H04B2201/69—Orthogonal indexing scheme relating to spread spectrum techniques in general
    • H04B2201/707—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation
    • H04B2201/70703—Orthogonal indexing scheme relating to spread spectrum techniques in general relating to direct sequence modulation using multiple or variable rates

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
SG200104315A 2000-07-18 2001-07-16 Cdma spreading method and cdma terminal apparatus SG101457A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2000216776A JP2002033716A (en) 2000-07-18 2000-07-18 Cdma spread method and cdma terminal

Publications (1)

Publication Number Publication Date
SG101457A1 true SG101457A1 (en) 2004-01-30

Family

ID=18711980

Family Applications (1)

Application Number Title Priority Date Filing Date
SG200104315A SG101457A1 (en) 2000-07-18 2001-07-16 Cdma spreading method and cdma terminal apparatus

Country Status (6)

Country Link
US (1) US20020021744A1 (en)
EP (1) EP1175031A2 (en)
JP (1) JP2002033716A (en)
KR (1) KR20020008032A (en)
CN (1) CN1333609A (en)
SG (1) SG101457A1 (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3956085B2 (en) * 2000-12-20 2007-08-08 日本電気株式会社 Transmitter circuit
CN100446446C (en) * 2002-01-29 2008-12-24 三菱电机株式会社 IQ multiplexing device and IQ multiplexing method
KR100444845B1 (en) * 2002-04-12 2004-08-21 주식회사 카서 Coding method and apparatus for constant amplitude transmission in code select cdma communication system and device thereof
KR100452512B1 (en) 2002-08-16 2004-10-13 엘지전자 주식회사 A spreading device and a method of walsh code for improving channel capacity
JP4116925B2 (en) * 2003-05-13 2008-07-09 松下電器産業株式会社 Radio base station apparatus, control station apparatus, communication terminal apparatus, transmission signal generation method, reception method, and radio communication system
JP4222957B2 (en) * 2004-03-01 2009-02-12 ソニー・エリクソン・モバイルコミュニケーションズ株式会社 Transmission power control method and apparatus
CN100349384C (en) * 2004-05-26 2007-11-14 华为技术有限公司 De-spread spectrum processing method and apparatus for multi-code transmission
EP1783941B1 (en) * 2004-06-16 2013-04-24 Research In Motion Limited Spread spectrum communication method and apparatus
JP4362090B2 (en) 2004-07-05 2009-11-11 パナソニック株式会社 Modulator
JP4639863B2 (en) * 2005-03-10 2011-02-23 セイコーエプソン株式会社 Liquid ejection device
WO2007108097A1 (en) * 2006-03-20 2007-09-27 Mitsubishi Denki Kabushiki Kaisha Mobile station, fixed station, and radio communication system
US7991040B2 (en) * 2006-04-04 2011-08-02 Qualcomm Incorporated Methods and apparatus for reduction of a peak to average ratio for an OFDM transmit signal
WO2008041110A2 (en) 2006-10-04 2008-04-10 Nokia Corporation Method for symbol multiplexing control and data channel
US20080132910A1 (en) * 2006-11-07 2008-06-05 Carlo Pappone Control for a Remote Navigation System
JP4492820B2 (en) * 2007-01-24 2010-06-30 日本電気株式会社 Transmitter circuit
US7936839B2 (en) * 2007-12-13 2011-05-03 Telefonaktiebolaget Lm Ericsson (Publ) MIMO/transmit diversity channel estimation
US8213526B2 (en) * 2007-12-13 2012-07-03 Telefonaktiebolaget Lm Ericsson (Publ) MIMO/transmit diversity channel estimation
JP5068699B2 (en) * 2008-06-23 2012-11-07 株式会社エヌ・ティ・ティ・ドコモ Base station apparatus and method
JP4938063B2 (en) * 2009-08-28 2012-05-23 株式会社エヌ・ティ・ティ・ドコモ Mobile station and radio communication system
KR101532821B1 (en) * 2010-04-02 2015-06-30 후지쯔 가부시끼가이샤 Apparatus and method for orthogonal cover code(occ) generation, and apparatus and method for occ mapping

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0878931A1 (en) * 1996-11-14 1998-11-18 Matsushita Electric Industrial Co., Ltd Radio communication equipment using algorithm diversity
EP0980159A1 (en) * 1998-08-12 2000-02-16 Alcatel Device enabling different spreading factors whilst preserving a common scrambling code

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100369794B1 (en) * 1997-08-18 2003-04-11 삼성전자 주식회사 Apparatus and method for generating spread signal of transmitter of mobile communication system
KR100269593B1 (en) * 1997-12-02 2000-10-16 정선종 Orthogonal complex spreading based modulation method for multichannel transmission
JP2002508620A (en) * 1998-03-23 2002-03-19 サムスン エレクトロニクス カンパニー リミテッド Power control apparatus and method for reverse link common channel in code division multiple access communication system
DE69937545T2 (en) * 1998-09-29 2008-03-06 Samsung Electronics Co., Ltd., Suwon DEVICE AND METHOD FOR GENERATING A SPREADING CODE AND CHANNEL SIGNAL SPREAD USING A SPREADING CODE IN A CDMA TRANSMISSION SYSTEM
JP3930187B2 (en) * 1999-03-03 2007-06-13 株式会社日立コミュニケーションテクノロジー Synchronization control method, receiver, base station, and mobile terminal
IL145548A0 (en) * 1999-04-12 2002-06-30 Samsung Electronics Co Ltd Apparatus and method for gated transmission in a cdma communication system
US6535500B1 (en) * 1999-08-06 2003-03-18 Samsung Electronics, Co., Ltd. Transmitter of a mobile station in a CDMA communications system and method therefor

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0878931A1 (en) * 1996-11-14 1998-11-18 Matsushita Electric Industrial Co., Ltd Radio communication equipment using algorithm diversity
EP0980159A1 (en) * 1998-08-12 2000-02-16 Alcatel Device enabling different spreading factors whilst preserving a common scrambling code

Also Published As

Publication number Publication date
JP2002033716A (en) 2002-01-31
CN1333609A (en) 2002-01-30
US20020021744A1 (en) 2002-02-21
EP1175031A2 (en) 2002-01-23
KR20020008032A (en) 2002-01-29

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